What is really disgusting is what breeders have done to the Boston’s nose and face, almost flattening the nose into the face. The rest of the skeletal conformation is also poor. This all leads to medical problems.
A Boston should have an actual nose and an athletic build.
https://www.bostonterriersociety.com/vintage-boston-terrier-photos/
Compare the noses on these with the Boston in the video.
They have breathing problems and fart a lot.